<table border="1" mj_done="true">
    <thead>
    <tr>
        <th>序号</th>
        <th>编号</th>
        <th>题目</th>
        <th>通过率</th>
        <th>难度</th>
        <th>出题指数</th>
        <th>出现频率</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td>1</td>
        <td>1</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum/">两数之和</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>2</td>
        <td>768</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-chunks-to-make-sorted-ii/">最多能完成排序的块 II</a>
        </td>
        <td>44.7%</td>
        <td>困难</td>
        <td>3</td>
        <td>2.39</td>
    </tr>
    <tr>
        <td>3</td>
        <td>2</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers/">两数相加</a></td>
        <td>36.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>4</td>
        <td>70</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/climbing-stairs/">爬楼梯</a></td>
        <td>47.8%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>5</td>
        <td>5</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-substring/">最长回文子串</a></td>
        <td>28.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.055</td>
    </tr>
    <tr>
        <td>6</td>
        <td>21</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-sorted-lists/">合并两个有序链表</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>7</td>
        <td>3</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/">无重复字符的最长子串</a>
        </td>
        <td>32.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.03</td>
    </tr>
    <tr>
        <td>8</td>
        <td>176</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/second-highest-salary/">第二高的薪水</a></td>
        <td>33.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.1</td>
    </tr>
    <tr>
        <td>9</td>
        <td>20</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parentheses/">有效的括号</a></td>
        <td>40.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.028</td>
    </tr>
    <tr>
        <td>10</td>
        <td>88</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-sorted-array/">合并两个有序数组</a></td>
        <td>46.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.034</td>
    </tr>
    <tr>
        <td>11</td>
        <td>124</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-maximum-path-sum/">二叉树中的最大路径和</a></td>
        <td>39.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.124</td>
    </tr>
    <tr>
        <td>12</td>
        <td>22</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/generate-parentheses/">括号生成</a></td>
        <td>73.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>13</td>
        <td>160</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-linked-lists/">相交链表</a></td>
        <td>52.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.047</td>
    </tr>
    <tr>
        <td>14</td>
        <td>300</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-increasing-subsequence/">最长上升子序列</a></td>
        <td>43.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.073</td>
    </tr>
    <tr>
        <td>15</td>
        <td>169</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element/">多数元素</a></td>
        <td>61.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.042</td>
    </tr>
    <tr>
        <td>16</td>
        <td>155</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/min-stack/">最小栈</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>17</td>
        <td>19</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/">删除链表的倒数第N个节点</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.03</td>
    </tr>
    <tr>
        <td>18</td>
        <td>214</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-palindrome/">最短回文串</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.377</td>
    </tr>
    <tr>
        <td>19</td>
        <td>16</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum-closest/">最接近的三数之和</a></td>
        <td>42.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.024</td>
    </tr>
    <tr>
        <td>20</td>
        <td>62</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths/">不同路径</a></td>
        <td>58.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    <tr>
        <td>21</td>
        <td>175</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combine-two-tables/">组合两个表</a></td>
        <td>71.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.027</td>
    </tr>
    <tr>
        <td>22</td>
        <td>184</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-highest-salary/">部门工资最高的员工</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>23</td>
        <td>344</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string/">反转字符串</a></td>
        <td>68.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    <tr>
        <td>24</td>
        <td>347</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-elements/">前 K 个高频元素</a></td>
        <td>60.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>25</td>
        <td>860</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lemonade-change/">柠檬水找零</a></td>
        <td>53.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.126</td>
    </tr>
    <tr>
        <td>26</td>
        <td>867</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/transpose-matrix/">转置矩阵</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.146</td>
    </tr>
    <tr>
        <td>27</td>
        <td>118</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/pascals-triangle/">杨辉三角</a></td>
        <td>65.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.029</td>
    </tr>
    <tr>
        <td>28</td>
        <td>452</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-number-of-arrows-to-burst-balloons/">用最少数量的箭引爆气球</a>
        </td>
        <td>48.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.146</td>
    </tr>
    <tr>
        <td>29</td>
        <td>132</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-partitioning-ii/">分割回文串 II</a></td>
        <td>41.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.186</td>
    </tr>
    <tr>
        <td>30</td>
        <td>10</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/regular-expression-matching/">正则表达式匹配</a></td>
        <td>26.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.032</td>
    </tr>
    <tr>
        <td>31</td>
        <td>723</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/candy-crush/">粉碎糖果</a></td>
        <td>65.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>1.155</td>
    </tr>
    <tr>
        <td>32</td>
        <td>43</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/multiply-strings/">字符串相乘</a></td>
        <td>41.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>33</td>
        <td>714</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-with-transaction-fee/">买卖股票的最佳时机含手续费</a>
        </td>
        <td>61.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.106</td>
    </tr>
    <tr>
        <td>34</td>
        <td>196</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-duplicate-emails/">删除重复的电子邮箱</a></td>
        <td>59.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.087</td>
    </tr>
    <tr>
        <td>35</td>
        <td>152</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-subarray/">乘积最大子序列</a></td>
        <td>37.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>36</td>
        <td>322</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change/">零钱兑换</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.041</td>
    </tr>
    <tr>
        <td>37</td>
        <td>33</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array/">搜索旋转排序数组</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    <tr>
        <td>38</td>
        <td>240</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix-ii/">搜索二维矩阵 II</a></td>
        <td>38.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>39</td>
        <td>56</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-intervals/">合并区间</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.03</td>
    </tr>
    <tr>
        <td>40</td>
        <td>46</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations/">全排列</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.024</td>
    </tr>
    <tr>
        <td>41</td>
        <td>206</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list/">反转链表</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.014</td>
    </tr>
    <tr>
        <td>42</td>
        <td>876</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/middle-of-the-linked-list/">链表的中间结点</a></td>
        <td>64.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>43</td>
        <td>543</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/diameter-of-binary-tree/">二叉树的直径</a></td>
        <td>47.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.056</td>
    </tr>
    <tr>
        <td>44</td>
        <td>142</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle-ii/">环形链表 II</a></td>
        <td>48.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.031</td>
    </tr>
    <tr>
        <td>45</td>
        <td>903</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-permutations-for-di-sequence/">DI
            序列的有效排列</a></td>
        <td>48.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.618</td>
    </tr>
    <tr>
        <td>46</td>
        <td>34</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/">在排序数组中查找元素的第一个和最后一个位置</a>
        </td>
        <td>38.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.024</td>
    </tr>
    <tr>
        <td>47</td>
        <td>48</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-image/">旋转图像</a></td>
        <td>66.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.032</td>
    </tr>
    <tr>
        <td>48</td>
        <td>7</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-integer/">整数反转</a></td>
        <td>33.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.008</td>
    </tr>
    <tr>
        <td>49</td>
        <td>9</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-number/">回文数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.01</td>
    </tr>
    <tr>
        <td>50</td>
        <td>32</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-valid-parentheses/">最长有效括号</a></td>
        <td>29.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.037</td>
    </tr>
    <tr>
        <td>51</td>
        <td>168</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/excel-sheet-column-title/">Excel表列名称</a></td>
        <td>36.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.074</td>
    </tr>
    <tr>
        <td>52</td>
        <td>235</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree/">二叉搜索树的最近公共祖先</a>
        </td>
        <td>62.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.047</td>
    </tr>
    <tr>
        <td>53</td>
        <td>279</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/perfect-squares/">完全平方数</a></td>
        <td>53.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>54</td>
        <td>628</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-product-of-three-numbers/">三个数的最大乘积</a>
        </td>
        <td>48.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.119</td>
    </tr>
    <tr>
        <td>55</td>
        <td>509</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fibonacci-number/">斐波那契数</a></td>
        <td>66.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.045</td>
    </tr>
    <tr>
        <td>56</td>
        <td>64</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-path-sum/">最小路径和</a></td>
        <td>64.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.026</td>
    </tr>
    <tr>
        <td>57</td>
        <td>200</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands/">岛屿数量</a></td>
        <td>46.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.031</td>
    </tr>
    <tr>
        <td>58</td>
        <td>189</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-array/">旋转数组</a></td>
        <td>40.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>59</td>
        <td>74</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-a-2d-matrix/">搜索二维矩阵</a></td>
        <td>37.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    </tbody>
</table>